Re: [PATCH 3/3] cmd: acpi: check HW reduced flag in acpi list

On Fri, Dec 15, 2023 at 05:40:16PM +0100, Heinrich Schuchardt wrote:

On non x86 platforms the hardware reduce flag must be set in the FADT table. Write an error message if the flag is missing.

...

• if (!IS_ENABLED(CONFIG_X86) &&

•    !(fadt->flags & ACPI_FADT_HW_REDUCED_ACPI))
  

• log_err("FADT not ACPI hardware reduced compliant\n");
  

I guess it's half baked solution as this, HW reduced, flag adds more limitations even on x86. If you want a good validation it should be done in a separate function taking others aspects into account.

But since it doesn't affect my area of interest in U-Boot, I won't prevent you from doing this way, it's up to the U-Boot maintainers how to proceed with it.